EP 2021276 A2 20090211 - PROCESS FOR PURIFYING PERFLUORINATED PRODUCTS
Title (en)
PROCESS FOR PURIFYING PERFLUORINATED PRODUCTS
Title (de)
VERFAHREN ZUM REINIGEN VON PERFLUORIERTEN PRODUKTEN
Title (fr)
PROCEDE DE PURIFICATION DE PRODUITS PERFLUORES
Publication
Application
Priority
- US 2007012873 W 20070531
- US 80966306 P 20060531
Abstract (en)
[origin: WO2007143055A2] This invention relates to a process for purifying at least one of perfluoromethane and nitrogen trifluoride from a mixture thereof using an ionic liquid. The process may be performed by a technique such as extractive distillation or absorption wherein at least one ionic liquid is used as the entraining agent or absorbent, respectively.
IPC 8 full level
C01B 21/086 (2006.01); C07C 17/38 (2006.01)
CPC (source: EP KR US)
B01D 53/00 (2013.01 - KR); B01D 53/14 (2013.01 - KR); C01B 21/0837 (2013.01 - EP US); C07C 17/38 (2013.01 - EP US); C07C 17/386 (2013.01 - EP US)
Citation (search report)
See references of WO 2007143055A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2007143055 A2 20071213; WO 2007143055 A3 20090514; CN 101541673 A 20090923; CN 101541673 B 20130821; EP 2021276 A2 20090211; EP 2021276 B1 20130717; JP 2009541212 A 20091126; JP 5266211 B2 20130821; KR 20090024742 A 20090309; TW 200808649 A 20080216; US 2007297965 A1 20071227; US 8771626 B2 20140708
DOCDB simple family (application)
US 2007012873 W 20070531; CN 200780019719 A 20070531; EP 07795562 A 20070531; JP 2009513281 A 20070531; KR 20087031727 A 20081229; TW 96119222 A 20070530; US 75536707 A 20070530